Freelancer profile translated to English.

Description

Full-Stack Developer | React | Node.js | SaaS

Does yourSaaSproject orweb applicationneed a meticulous and autonomous developer?

I can design and develop your **web applications**, from MVP to production.

Full-Stack React and Node.js Developer, I design scalable and performantSaaS applications, marketplaces, and landing pages. Formerly a nuclear engineer (EDF, Hinkley Point C), I bring a design rigor inherited from critical environments.

Recent projects:

- Conversion of a co-living platform (5000+ clients, 150+ visits/day) from WordPress to Next.js.

Improved front-end performance by 50-70% and backend by 90%+. Stack:Next.js, Supabase, Vercel

Delivered in 6 days.

- Water services marketplace - Full-stack platformReact, Node.js, Supabase, PostgreSQL, AWS

- Automated blog - Complete application with automated content generation,React, Node.js, PostgreSQL, AWS

- Landing pages - SEO-optimized conversion sites,React, Vercel

My Full-Stack approach:

- Frontend: Next.js, React.js, Typescript, JavaScript, TailwindCSS, Technical SEO

- Backend: Node.js, REST API, OAuth authentication

- Database:PostgreSQL, Supabase

- Payments: Stripe, Yoco, Mercadopago

- Deployment: Vercel,AWS, analytics (GA, GTM, GSC)

Why work with me?

- Rigor inherited from nuclear engineering (EDF, Hinkley Point C)

- Clean, scalable, and documented code

- Trilingual French, English, Spanish

- Autonomous and quickly operational

Trilingual FR/EN/ES. Former nuclear engineer retrained as a full-stack dev.

Contact me to discuss your needs. Quick response (within 1 hour).

Industry field of expertise

Languages

French
Native or bilingual
English
Native or bilingual
Spanish
Native or bilingual

Workplace preferences

Can work on-site

Lyon (up to 50km), Paris (up to 50km), Bordeaux (up to 50km), Lille (up to 50km), Toulouse (up to 50km)

winit
Full-Stack Developer
SOFTWARE PUBLISHING
June 2026 - Today (2 months)
New York, United States
Full-stack developer in a team of 4 developers.
Tasks are varied and responsibilities are significant, ranging from frontend and backend to DevOps.
Winit has over 2 million users, so the impact of each developer is very important.

My main tasks:

*Creation of a custom chat with AWS WebSocket server

This tailor-made solution allows Winit to save over €500 per month with a solution better suited to its needs.

*Creation of a scraper with monitoring

This scraper added to Winit's list improves search result quality and yield.

*Modernization of the login/sign-up system

The application now uses a simpler passwordless login/sign-up using modern solutions like Google One Tap, Apple Sign-In, and Magic Link.

*Optimization of Meta campaigns

Winit's data is transmitted to Meta encrypted to optimize advertising campaigns by creating target audiences and specific events.

*Improvement of design and onboarding

Integration of a more dynamic design, with animated SVG logos and improvement of the onboarding flow for first-time visitors to the application.
Amazon Web Services Next.js NodeJS Heroku React.js
Freelance
Full-Stack Developer React | Node.js | SaaS
SOFTWARE PUBLISHING
October 2025 - Today (10 months)
Lyon, France
Development of customSaaS platformsandweb applicationsfor various clients.

Main tasks:

Conversion of a coliving platform from WordPress to aNext.jsapplication.
- Duration: 6 days
- Target: Platform with over 5000 clients and over 100 daily visits.
- Result: Significant optimization and fluidity improvements ranging from 50% to 70% for the front end and over 90% for the backend.
Full-stack water services marketplace:React,Node.js, Supabase, PostgreSQL, AWS
Automated blog with AI content generation:React, Node.js, PostgreSQL, AWS
SEO-optimizedlanding pages: React, Vercel
Integration of multi-currency payment systems (Stripe, Yoco, Mercadopago)
TechnicalSEO optimizationand setup of analytics (GA, GTM)
React Node.js Supabase AWS Stripe
EDF
Nuclear Operator at CNPE du Blayais | Critical Systems
ENERGY AND UTILITIES
November 2021 - October 2022 (11 months)
Bordeaux, France
Operation of the Blayais nuclear power plant from the main control room. An environment where error is not an option.

Main tasks:

- Control and monitoring of the nuclear reactor's critical systems
- Strict adherence to safety protocols and emergency procedures
- Collaboration with senior operators to improve operational efficiency

Results: Reliability and rigor acquired in an environment where every action is documented, tracked, and verified. This culture of precision is reflected in every line of code I deliver today.
Project Management Performance Optimization Documentation Rigor and Organization Critical Systems